Many publishers provide a bank of questions. The quiz your friend took might not be the exact one you get.
: Because 5 questions are relatively easy to manipulate, the system tracks the student's reading speed (Words Per Minute) . If a student opens a book and immediately tries to take the quiz, the system flags the rapid speed to the teacher. xreading quiz answers work
Reasons quiz answers “work” (i.e., reliably assess reading) Unlocking the Truth: How Xreading Quiz Answers Work